Where do you put the comma before or after but?

You put the comma before the word "but" when it connects two independent clauses (complete sentences).

Here's the rule:

Independent Clause, but Independent Clause.

Example:

* I love to eat ice cream, but I try to limit my intake.

Exceptions:

You don't need a comma before "but" if:

* The two clauses are very short and simple.

* The second clause is a dependent clause.

Examples:

* I love to eat ice cream but not every day. (Short clauses)

* I love to eat ice cream but only when I'm out with friends. (Dependent clause)

Let me know if you have any other grammar questions!